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Title: US3610801: DIGITAL MUSIC SYNTHESIZER

Country: US United States of America

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9 pages

 
Inventor: Fredkin, Edward; Brookline, MA
Minsky, Marvin L.; Brookline, MA

Assignee: Triadex Incorporated, Brookline, MA
other patents from TRIADEX INCORPORATED (586155) (approx. 1)
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Published / Filed: 1971-10-05 / 1970-02-16

Application Number: US1970000011683

IPC Code: Advanced: G10H 1/00; G10H 7/00;
IPC-7: G10F 1/00; G10H 5/00;

ECLA Code: G10H1/00M5; G10H7/00; S10H210/111;

U.S. Class: Current: 084/602; 084/648; 984/341; 984/388;
Original: 084/001.03;

Field of Search: 084/1.01,1.03,1.22,1.26

Priority Number:
1970-02-16  US1970000011683

Abstract: In the apparatus disclosed herein, a note generator is controlled by a long term, quasi-periodic function which is in turn generated by applying digital feedback in preselected combinations around a digital register. The register comprises means for holding a plurality of bits of digital information in a given order, e.g. a shift register or counter, the held information being changeable according to a predetermined pattern in response to input signals applied thereto. Digital feedback is provided by applying to the register at least one input signal which is obtained according to a preselectable or adjustable code from bits of information obtained from various points in the register itself. The apparatus thus, in effect, composes music as distinguished from merely synthesizing sound.

Attorney, Agent or Firm: Kenway, Jenney & Hildreth ;

Primary / Asst. Examiners: Duggan, D. F.; Witkowski, Stanley J.

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First Claim:
Show all 19 claims
    1. Apparatus for making music, said apparatus comprising:
  • tone generating means operating to provide a variety of musical notes in response to respective predetermined combinations of control signals applied thereto;
  • a register which comprises means for holding a plurality of bits of digital information in a given order, said held information being changeable according to a predetermined pattern in response to input signals applied to said register;
  • means for reading digital information held in said register at a plurality of selected points in said register;
  • means for applying to said register at least a first input signal which is obtained according to a preselectable code from bits of information obtained from said plurality of points;
  • means for applying to said register a second input signal which varies according to a predetermined periodic function thereby to cause the information held in said register to periodically change in a predeterminable sequence; and
  • means for applying to said tone generating means control signals which vary as respective preselectable logical functions of the information held in said register thereby to cause said tone generating means to produce a sequence of notes, the pattern of which is a function of the changing


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Forward References: Show 15 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (15)   |   Backward references (7)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 11pp USRE26521  1969-02 Park   AUTOMATIC REPETITIVE RHYTHM INSTRUMENT TIMING CIRCUITRY
Get PDF - 6pp US3358068  1967-12 Campbell   Automatic rhythm device
Get PDF - 11pp US3478633  1969-11 Mallett   COUNTER RESETTING ARRANGEMENT FOR RHYTHM ACCOMPANIMENT STARTING
Get PDF - 8pp US3482027  1969-12 Okamoto et al.   AUTOMATIC RHYTHM INSTRUMENT
Get PDF - 6pp US3499091  1970-03 Bunger   STEPPING RHYTHMIC INTERPOLATER
Get PDF - 7pp US3499092  1970-03 Bunger   ACCOMPANIMENT CHORD RHYTHM SYSTEM
Get PDF - 6pp US3518352  1970-06 Plunkett   RHYTHM GENERATING CIRCUIT FOR MUSICAL INSTRUMENT
       
Foreign References: None

Other References:
  • "Build the Psych-Tone," Popular Electronics, Feb. 1971, pp. 25-35.


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